MAILSCANNER on firewall

[Arthur E. Groen]

Hallo list,

I have a multie homed host firewall with GOOD, BAD and a DMZ
The emailserver is in the DMZ
I would like to run the mailscanner on the firewall
and forward to the mailserver but mails should not look
like "forwarded"

The firewall is debian 2.2 with ipchains and has no
mail progs running now
The mail server is Sun/Solaris

pls advice what mail program to install mailscanner on
and how to alter mailter config

rgds
/Arthur